James f



(No Model.)

J. P. GILLILAND.

ARMATURE FOR ELEGTRO MAGNETS.

No. 323,663. Patented Aug 4, 1885.

WITNESSES. I

NITED STATES PATENT OFFICE.

JAMES F. GILLILAND, OF INDIANAPOLIS, INDIANA.

ARMATURE FOR ELECTRO-MAGNETS.

SPECIFICATION forming part of Letters Patent No. 323,663, dated August 4, 1885.

Application filed June 17, 1884.

To aZZ whom it may concern:

Be it known that I, J AMES F. GILLILAND, of the city of Indianapolis, county of Marion, and State of Indiana, have invented certain new and useful Improvements in Armatures for Electro-lVIagnets, of which the following is a specification.

My said invention consists in the construction of armatures for electro-magnets, whereby they are rendered simple and inexpensive, as will be hereinafter more fully described.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure lis a top or plan view of a telegraph-sounder embodying mysaid invention; Fig. 2, a transverse vertical section thereof, looking to the right from the dotted line 2 z and Fig. 3 a perspective View of the armature separately.

In said drawings the portions marked A represent the base of the instrument; B, the armature-post; C, the armature; D, the electro-magnets, and E the soundendrum.

The base A, magnets D, and drum E form no part of the present invention, and will not therefore be further described herein.

The post B has the usual pivot-screws,b, on which the armature is mounted.

The armature O is constructed of a straight bar, as usual, except that it has an enlarged portion, 0, in the center, through which is formed ahole to receive the armature-rod, which, in the form illustrated, also forms the sounder-bar. I prefer to make this armature of malleable iron, but may make it of dropforglngs or otherwise.

(No model The armature rod 0 is a plain round rod of suitable length, and is provided at one end with the pivots c, and is mounted and operated in the usual manner.

As will be readily seen, this armature, be ing constructed of two easily-formed parts, is simple and less expensive than those heretofore used.

Having thus fully described my said inv'en tion, what I claim as new, and desire to secure by Letters Patent, is

1. An armature for electromagnets,consisting of an armature proper, formed of a flat bar with an. enlarged center provided with a hole, and a round straight armature-rod pass ing through said hole, substantially as set forth.

2. The combination of the straight flat bar JAMES F. GILLILAND. [L. s]

In presence of O. BRADFORD,

E. \V. BRADFORD. 

